Numerical Simulation of Equal and Opposing Subcritical Flow Junctions
This study presents measured and computational results of a flow pattern at a junction with equal and opposing flows in the upstream channel that collide and turn 90° into the branch channel. The computational results are obtained using a two-dimensional, depth-averaged model with the k-ε turbulent...
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| Veröffentlicht in: | Journal of hydraulic engineering (New York, N.Y.) N.Y.), 2008-02, Vol.134 (2), p.267-273 |
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| container_title | Journal of hydraulic engineering (New York, N.Y.) |
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| creator | Frizzell, C. S Khan, A. A Werth, D. E |
| description | This study presents measured and computational results of a flow pattern at a junction with equal and opposing flows in the upstream channel that collide and turn
90°
into the branch channel. The computational results are obtained using a two-dimensional, depth-averaged model with the
k-ε
turbulent closure scheme. The aim is to predict the recirculation zones that form as the flow turns into the branch channel. The simulated depth and velocity profiles in the upstream main and the downstream branch channels are found to compare well with the measurements made in the physical model for various inlet Froude numbers and width ratios of the main channel to the branch channel. The absolute relative error between the measured and computed contraction coefficient, a measure of the recirculation zone size, is less than 4.7%. The computational model is then used to develop curves for the contraction coefficient for various inlet Froude numbers and ratios of main channel width to the branch channel width for design purposes. |
| doi_str_mv | 10.1061/(ASCE)0733-9429(2008)134:2(267) |
| format | Article |
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90°
into the branch channel. The computational results are obtained using a two-dimensional, depth-averaged model with the
k-ε
turbulent closure scheme. The aim is to predict the recirculation zones that form as the flow turns into the branch channel. The simulated depth and velocity profiles in the upstream main and the downstream branch channels are found to compare well with the measurements made in the physical model for various inlet Froude numbers and width ratios of the main channel to the branch channel. The absolute relative error between the measured and computed contraction coefficient, a measure of the recirculation zone size, is less than 4.7%. The computational model is then used to develop curves for the contraction coefficient for various inlet Froude numbers and ratios of main channel width to the branch channel width for design purposes.</description><identifier>ISSN: 0733-9429</identifier><identifier>EISSN: 1943-7900</identifier><identifier>DOI: 10.1061/(ASCE)0733-9429(2008)134:2(267)</identifier><identifier>CODEN: JHEND8</identifier><language>eng</language><publisher>Reston, VA: American Society of Civil Engineers</publisher><subject>Applied sciences ; Buildings. Public works ; Computation methods. Tables. Charts ; Exact sciences and technology ; Hydraulic constructions ; Structural analysis. Stresses ; TECHNICAL NOTES</subject><ispartof>Journal of hydraulic engineering (New York, N.Y.), 2008-02, Vol.134 (2), p.267-273</ispartof><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a382t-8d2ae72607c11e6395dc4d71802a6ef83765eac53af979f53a15ba7cae2491b03</citedby><cites>FETCH-LOGICAL-a382t-8d2ae72607c11e6395dc4d71802a6ef83765eac53af979f53a15ba7cae2491b03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttp://ascelibrary.org/doi/pdf/10.1061/(ASCE)0733-9429(2008)134:2(267)$$EPDF$$P50$$Gasce$$H</linktopdf><linktohtml>$$Uhttp://ascelibrary.org/doi/abs/10.1061/(ASCE)0733-9429(2008)134:2(267)$$EHTML$$P50$$Gasce$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,76193,76201</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20148235$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Frizzell, C. S</creatorcontrib><creatorcontrib>Khan, A. A</creatorcontrib><creatorcontrib>Werth, D. E</creatorcontrib><title>Numerical Simulation of Equal and Opposing Subcritical Flow Junctions</title><title>Journal of hydraulic engineering (New York, N.Y.)</title><description>This study presents measured and computational results of a flow pattern at a junction with equal and opposing flows in the upstream channel that collide and turn
90°
into the branch channel. The computational results are obtained using a two-dimensional, depth-averaged model with the
k-ε
turbulent closure scheme. The aim is to predict the recirculation zones that form as the flow turns into the branch channel. The simulated depth and velocity profiles in the upstream main and the downstream branch channels are found to compare well with the measurements made in the physical model for various inlet Froude numbers and width ratios of the main channel to the branch channel. The absolute relative error between the measured and computed contraction coefficient, a measure of the recirculation zone size, is less than 4.7%. The computational model is then used to develop curves for the contraction coefficient for various inlet Froude numbers and ratios of main channel width to the branch channel width for design purposes.</description><subject>Applied sciences</subject><subject>Buildings. Public works</subject><subject>Computation methods. Tables. Charts</subject><subject>Exact sciences and technology</subject><subject>Hydraulic constructions</subject><subject>Structural analysis. Stresses</subject><subject>TECHNICAL NOTES</subject><issn>0733-9429</issn><issn>1943-7900</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEUhYMoWKv_YTZquxjNYyaZdCGUMvVBsYvqOqSZjKTMq8kE8d-bsaVLVwcuH-dwPwDuEXxAkKLHyXyzyKeQERLzBPMJhjCbIpLM8ARTNj0DI8QTEjMO4TkYnbhLcOXcDkKUUJ6NQP7ua22NklW0MbWvZG_aJmrLKN_7cJNNEa27rnWm-Yo2fqus6f_gZdV-R2--UQPvrsFFKSunb445Bp_L_GPxEq_Wz6-L-SqWJMN9nBVYaoYpZAohTQlPC5UUDGUQS6rLjDCaaqlSIkvOeBkSpVvJlNQ44WgLyRjcHXo72-69dr2ojVO6qmSjW-8EwZATitMAPh1AZVvnrC5FZ00t7Y9AUAz6hBj0iUGLGLSIQZ8I-gQWQV8ouD0uSRf-La1slHGnFhz8ZZgMQ7MDFzAtdq23TRBwWvl_5BcXuIH3</recordid><startdate>20080201</startdate><enddate>20080201</enddate><creator>Frizzell, C. S</creator><creator>Khan, A. A</creator><creator>Werth, D. E</creator><general>American Society of Civil Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20080201</creationdate><title>Numerical Simulation of Equal and Opposing Subcritical Flow Junctions</title><author>Frizzell, C. S ; Khan, A. A ; Werth, D. E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a382t-8d2ae72607c11e6395dc4d71802a6ef83765eac53af979f53a15ba7cae2491b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>Buildings. Public works</topic><topic>Computation methods. Tables. Charts</topic><topic>Exact sciences and technology</topic><topic>Hydraulic constructions</topic><topic>Structural analysis. Stresses</topic><topic>TECHNICAL NOTES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Frizzell, C. S</creatorcontrib><creatorcontrib>Khan, A. A</creatorcontrib><creatorcontrib>Werth, D. E</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of hydraulic engineering (New York, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Frizzell, C. S</au><au>Khan, A. A</au><au>Werth, D. E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical Simulation of Equal and Opposing Subcritical Flow Junctions</atitle><jtitle>Journal of hydraulic engineering (New York, N.Y.)</jtitle><date>2008-02-01</date><risdate>2008</risdate><volume>134</volume><issue>2</issue><spage>267</spage><epage>273</epage><pages>267-273</pages><issn>0733-9429</issn><eissn>1943-7900</eissn><coden>JHEND8</coden><abstract>This study presents measured and computational results of a flow pattern at a junction with equal and opposing flows in the upstream channel that collide and turn
90°
into the branch channel. The computational results are obtained using a two-dimensional, depth-averaged model with the
k-ε
turbulent closure scheme. The aim is to predict the recirculation zones that form as the flow turns into the branch channel. The simulated depth and velocity profiles in the upstream main and the downstream branch channels are found to compare well with the measurements made in the physical model for various inlet Froude numbers and width ratios of the main channel to the branch channel. The absolute relative error between the measured and computed contraction coefficient, a measure of the recirculation zone size, is less than 4.7%. The computational model is then used to develop curves for the contraction coefficient for various inlet Froude numbers and ratios of main channel width to the branch channel width for design purposes.</abstract><cop>Reston, VA</cop><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)0733-9429(2008)134:2(267)</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0733-9429 |
| ispartof | Journal of hydraulic engineering (New York, N.Y.), 2008-02, Vol.134 (2), p.267-273 |
| issn | 0733-9429 1943-7900 |
| language | eng |
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| source | American Society of Civil Engineers:NESLI2:Journals:2014 |
| subjects | Applied sciences Buildings. Public works Computation methods. Tables. Charts Exact sciences and technology Hydraulic constructions Structural analysis. Stresses TECHNICAL NOTES |
| title | Numerical Simulation of Equal and Opposing Subcritical Flow Junctions |
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